html,
body,
div,
h3,
p,
ul,
li,
button,
textarea {
    margin: 0;
    padding: 0;
}

ul,
li {
    list-style: none;
}

body {
    font-family: "Helvetica Neue", Helvetica, STHeiTi, sans-serif;
    background: #f1f1f1;
}

a, img {
    -webkit-touch-callout: none; /* 禁止长按链接与图片弹出菜单 */
}

html, body {
    -webkit-user-select: none; /* 禁止选中文本（如无文本选中需求，此为必选项） */
    user-select: none;
}

input, button, select, textarea {
    outline: none;
    -webkit-appearance:none;
}

textarea {
    resize: none;
    -webkit-appearance:none;
}

button, textarea, input, select {
    border: 0;
}

.feed-wrapper {
    width: 100%;
    min-width: 320px;
}

.feed-item {
    width: 100%;
    padding: 1rem 0;
    margin-bottom: 20px;
    border: 1px solid #dedfe0;
    border-left: 0;
    border-right: 0;
    background: #ffffff;
}

.feed-item textarea {
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
    font-size: inherit;
    resize: none;

}

.feed-item label {
    padding: 0 10px;
    font-size: inherit;
}

.feed-item select {
    width: 100%;
    padding: 0 10px;
    font-size: inherit;
    background: #ffffff;
}

.feed-item input {
    display: inline-block;
    font-size: inherit;
    width: 70%;
}
.feed-item span {
    display: inline-block;
}

.feed-content {
    height: 6rem;
    padding-bottom: 40px;
}

.feed-submit {
    width: 100%;
    padding: 0 10px;
    box-sizing: border-box;
}

.btn {
    width: 100%;
    height: 2.5rem;
    text-align: center;
    line-height: 2rem;
    font-size: inherit;
    color: #ffffff;
    border-radius: 10px;
}

.btn.disable {
    background: #81d4f3;
}

.btn.enable {
    background: #11b7f5;
}

@media screen and (min-width: 320px) {
    html {
        font-size: 14px;
    }
}

@media screen and (min-width: 360px) {
    html {
        font-size: 16px;
    }
}

@media screen and (min-width: 400px) {
    html {
        font-size: 18px;
    }
}

@media screen and (min-width: 440px) {
    html {
        font-size: 20px;
    }
}

@media screen and (min-width: 480px) {
    html {
        font-size: 22px;
    }
}

@media screen and (min-width: 640px) {
    html {
        font-size: 28px;
    }
}